3S DC UPS Module 12V 4A, 50W Output, Battery Charging & Protection

ONE PORT. TWO POWER SOURCES. SEAMLESS SWITCHING.

The amiciSmart 3S DC UPS Module is designed for applications where your DC equipment needs backup power without complicated power-source wiring.

Its biggest advantage is the Same-Port Bidirectional UPS Design. The same connection is used for the external DC supply and battery-powered operation, allowing the module to manage power switching between the two sources.

SAME-PORT BIDIRECTIONAL UPS – THE DIFFERENCE

Unlike conventional setups that may require separate charging and output connections, this module uses a same-port architecture.

It supports live plug/unplug operation, allowing the external DC supply to be connected or disconnected while the compatible load remains connected.

Simpler wiring. Easier integration. Automatic power-source switching.

KEEP YOUR DC EQUIPMENT RUNNING

The module supports simultaneous load operation + battery charging + backup power.

When external DC power is available, the connected battery can be charged while powering the load. If the external supply is interrupted, the battery can take over to keep the compatible DC equipment operating.

DESIGNED FOR 3S LITHIUM BATTERY PACKS

The 3S version is designed for:

11.1V nominal battery voltage
12.6V fully charged
2Ah–15Ah recommended battery capacity
Compatible with suitable Li-ion / Li-Po battery packs

Specification
Product Type:- 3S DC UPS / Uninterruptible Power Supply Module
Model / Version:- 3S DC UPS DIY-2
Battery Configuration:- 3S Lithium Battery Pack
Battery Voltage:- 11.1V Nominal / 12.6V Full Charge
Recommended Battery Capacity:- 2Ah–15Ah
Compatible Battery Types:- Lithium-Ion / Lithium-Polymer
Recommended Input Voltage:- DC 13V
Input Voltage Range:- Approximately DC 12V–15V
Charging Function:- Built-in battery charging circuit
Default Charging Current:- Approximately 1.2A–1.4A
Rated Output Current:- 4A
Peak Output Current:- 6A
Rated Output Power:- Approximately 50W
Recommended Continuous Load:- Below 4A
UPS Function:- Simultaneous Load + Charging + Battery Backup
UPS Type:- Same-Port / Bidirectional DC UPS
Output Voltage:- Approximately equal to battery voltage during battery operation
Reverse Output Loss:- Approximately 0.1V at 2A load for 3S version
Overload Protection:- Yes
Short-Circuit Protection:- Yes
Battery Over-Discharge Protection:- Yes
Input Fuse Protection:- Yes
Reverse Polarity Protection:- Not supported
Live Plug/Unplug:- Supported
Charging Indicator:- LED
Discharge Indicator:- LED
PCB Dimensions:- 50 × 20 mm
PCB Height:- Approximately 4 mm
Weight Approximately 6.2 g
Installation Type:- DIY / PCB Module
Typical Applications:- CCTV, networking equipment, monitoring systems, smart devices, LED lights and other compatible 12V DC equipment